PRODUCTION OF CARBON MOLDED BODY
PURPOSE:To obtain a carbon molded body useful as a heat insulator for a high temp. furnace, etc., at a low cost by mixing carbon fibers with pitch fibers having a prescribed rate of residual carbon under specified conditions and baking a laminate of the mixed fibers in an inert atmosphere. CONSTITUT...
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Zusammenfassung: | PURPOSE:To obtain a carbon molded body useful as a heat insulator for a high temp. furnace, etc., at a low cost by mixing carbon fibers with pitch fibers having a prescribed rate of residual carbon under specified conditions and baking a laminate of the mixed fibers in an inert atmosphere. CONSTITUTION:Carbon fibers are mixed with pitch fibers having 0.3-0.9 rate (f) of residual carbon produced from coal pitch and/or petroleum pitch so as to regulate the product (f.r) of the weight ratio (r) of the pitch fibers to the carbon fibers and the rate (f) of residual carbon to 0.1-4.0. A laminate of the mixed fibers are baked at >=800 deg.C in an inert atmosphere such as an N2 atmo sphere. |
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